package com.zhongshu.config;

import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @ClassName: RedisConfig
 * @Description: TODO
 * @author: 星~
 * @date: 2021/9/13 0013 上午 9:21
 */
@Configuration
@EnableCaching
@EnableConfigurationProperties(CacheProperties.class) // 开启缓存配置
public class MyCacheConfig {


    /**
     * 修改序列化方式和修改 yml配置生效
     * @param cacheProperties
     * @return
     */
    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties) {
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();

        // key 用 默认的序列化器
        config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        // value 用默认 jackson 转换
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));

        /**
         * Redis yml配置生效
         */
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }

        if (redisProperties.getKeyPrefix() != null) {
            config = config.prefixCacheNameWith(redisProperties.getKeyPrefix());
        }

        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }

        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }

        return config;

    }

}
